ALLNIC AUDIO H-3000V Benutzerhandbuch - Seite 9
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From this point on, operation is straight-forward. All
functions except for MC transformers' gain selection and the
phono equalization controls are accessed from the front
panel. Of course, BE CAREFUL about differences in gain
between your sources. Generally, disc players and tuners will
have greater gain than phono stages. That means the volume
setting for listening to your turntable might be too high for
listening to CD's.
When you are finished listening, turn off your power
amplifier(s); then turn off your preamplifier and then turn off
the H-3000V last by pressing the on-off switch on the front
panel of the power supply so it returns to the out position.
In the case of any failure, please contact Hammertone Audio
for assistance.
THE CURRENT METERS
These illuminated meters indicate the current supply to the
gain tubes in the H-3000V. They are indicators of failure or
damage to the function of the unit. There is one meter for
each channel. The needle should be between the two parallel
lines just left of centre on the meter face. Any failure of the
tubes or circuits in one or the other of the H-3000V's
channels is indicated by the needle on the meter for the
respective channel moving out from between these two
parallel lines.
If the needle has moved to the left of the parallel
lines on a meter, it means that one or both the E810F
tubes for that channel is failing.
If the needle on either meter moves to the right of
the parallel lines, it means that one or the other of
the voltage regulator tubes (7233 or 6485) for that
channel is failing.
In the case of any failure indicated by a meter, please contact
Hammertone Audio for assistance.
TUBES
The H-3000V uses the following tubes (please see Figure 6):
Four (4) x E810F
Two (2) x 7233
Two (2) x 6485
One (1) x 5AR4 (in, and the only tube in, the power
supply)
All consequences of changing or attempting to change tubes are
borne by the user unless by express agreement between the
owner and Hammertone Audio. Allnic Audio and Hammertone
Audio are not liable in any way whatsoever for any injury or loss
incurred by the user or for damage to the H-3000V, any of its
parts, or tubes or replacement tubes resulting from the user
changing or attempting to change tubes.
SPECIFICATIONS FOR THE ALLNIC AUDIO H-3000V PHONO
STAGE
Inputs:
Ground:
Outputs:
Frequency (RIAA):
Voltage Gains:
Input Impedance:
Maximum Input Voltage
(MM, non-clipping):
THD
(Total Harmonic
Distortion):
Output Impedance:
S/N Ratio:
Power Consumption:
Tubes:
9
Moving Coil (MC) × two (2) pairs
unbalanced (RCA)
Moving Magnet (MM) x two (2)
pairs unbalanced (RCA)
One (1) x screw type terminal
One (1) pair x unbalanced (RCA)
One (1) pair x balanced (XLR)
20Hz ~ 20KHz (±0.5db)
30Hz ~ 15kHz (±0.3dB)
MM +40dB (1KHz)
MC +62, +66, +68, +72dB (1Khz)
MC up to 470Ω (see "Impedance"
in the Initial Set-Up section, above)
MM 47kΩ
20Hz / 10mV
100Hz / 50mV
1KHz / 220mV
10KHz / 690mV
Less than 0.3% (1KHz, Output 1V)
200Ω (Constant)
-85db (CCIR, 1KHz)
80W – 110/120 / 60Hz
E810F × 4 (electrically equivalent to
7788) (gain stages, left and right